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The Flash S05E09, Elseworlds (I)S05E09

The Flash · Season 5

The Flash season 5 episode 9: Elseworlds (I)

Aired 9 December 201842 minRated TV-PG

8.1TMDB · 34 votesMark watched

Where to watch The Flash Season 5 in Australia

The Flash season 5 is streaming in Australia on Prime Video (subscription), HBO Max (subscription) and Stan (subscription), and free on 9Now. You can also buy it on Apple TV from $7.99, Fetch TV from $44.99 and Prime Video Store from $29.99.

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Free

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Availability checked 16 November 2026.

What happens in “Elseworlds (I)”

When Barry Allen and Oliver Queen wake up one morning and realize they have swapped bodies with each other, the two set off to find out what disturbed the timeline to cause such a shift. However, things quickly go from bad to worse when they present their case to Team Flash and the gang doesn’t believe them. Barry and Oliver realize they need Supergirl’s help and travel to Smallville on Earth-38 where they end up meeting Kara’s cousin, Clark Kent, and intrepid reporter, Lois Lane. The crossover continues on Arrow S07E09 Elseworlds (II) and Supergirl S04E09 Elseworlds (III).

Episode summary: TMDB.

Before you watch

  • It is episode 9 of 22 of season 5, so watch episodes 1 to 8 first.
  • It runs about 42 minutes.
  • Directed by Kevin Tancharoen, written by Sam Chalsen and Eric Wallace.
  • TMDB users rate it 8.1 out of 10 (34 votes).

The Flash trailer

The official trailer for the series (no preview of this episode has been published).

The Flash trailerPlay video: The Flash trailer

Cast and crew of this episode

Director
Kevin Tancharoen
Writers
Sam ChalsenEric Wallace

Credits: TMDB.

More from The Flash Season 5

Previous · S05E08What's Past Is Prologue4 December 2018Next · S05E10The Flash & The Furious15 January 2019
  1. E01
  2. E02
  3. E03
  4. E04
  5. E05
  6. E06
  7. E07
  8. E08
  9. E09
  10. E10
  11. E11
  12. E12
  13. E13
  14. E14
  15. E15
  16. E16
  17. E17
  18. E18
  19. E19
  20. E20
  21. E21
  22. E22

Every episode of Season 5The Flash episode guide

Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.